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July 8 l X. BRUGGER WINDING FRAME 2 U w am. 9 m `r` v 5. m i e s .3 w Rw 3 Em- GRM ,.U.. @Fl .md www F m Ema F. hmm i F istanti serata aaienimm Bneona, or noname, SWITZERLAND.

wINnINe rms Application led April 24, 1922. Serial No. 556,213.

To all whom it may concern.:

`Be it known that I, XAVER BRGGER, a citizen of the Republic ofSwitzerland, residing at Horgen, Switzerland, have invent` ed certainnew and useful improvements in Winding Frames; and I do hereby declarethe followingl to be a full, clear, and ex. act description of theinvention, `such as vwill enable others skilled in the art to which itappertains to make and use the same, reference being had to theaccompanylng drawings, and to letters or figures of reference markedthereon, which form a partl of this specification.

The well-known winding frames provided with spools havin on the side onwhich the drive is locate a bearing which opens upwards, present thedrawback that in Winding up the thread which comes from the threadholder, the spools vibrate, thus causing an unequal, hard and softwinding. The result thereof is that these spools must be re-wound. l

The same drawback is inherent in the well-known. weft winding frames inwhich a revolving spindle supported at one end carries the spoolsL"According to the invention, this drawback is eliminated by providing theends of the driving shaft with friction disks with taper bores for thepurpose of having coaxially supported, at one of their ends, two spoolson which the thread is to be wound, the other ends of these spools beinglodged in disk bearings 16 provided with comcal bearing surfaces andsubject to the action of springs.

Une embodiment of the invention is illustrated, by way -of example, inthe accompany/ing drawings, in which Fig. l1 shows the winding frame infront view, partially in section, and

Fig. 2 in a side view.

Figs 3 and 4 show dia' rammatically a modification of the threa holder'in side view and in plan'respectively.

The frame 1 (omitted in F ig. 1 for the sake of clearness) carries twobearing standards 2 with three bearings 3, 4 and 5 each. The centralbearing 4 carries'the drivingshaft 6 for the spools 7. rEhe drive ise'ected by means of cords Vfrom the shaft 8, Disks 9 are secured to bothends of the "driving shaft 6, said disks fitting into the pedestal ofthe bearing 4 so as to' ensure an exactly axial rotation-of the shaft.rlhe vcoidal springs 15. being these two supports.

p spools for example.

disks 49 are provided with taper bores 10. The shafts 11'of the bearings3 and 5 are supportedby the pedestals of these bearings at 12 and bythedisks 14 which are adapted to be shifted in axial direction andtightly it into the bores 13 of said pedestals, heliinterposed betweenhe shafts carry, on their ends facing the spools 7, disks 16 rigidlyconnected with the shafts 11 and provided with the tapered bores 16.order to reduce the friction between the disks 14 and 16, balls 17 areinterposed.

In order to enable spools of various lengths to be wound, the bearings 3and 5 may also be adapted to be shifted relatively to the central bearin4.

If a spool is to ie lodged between the shafts 6 and 11, one end of thespool is introduced into the taper bore of the disk 16 and the bearingpushed so far away as to allow the other end of the Spool to beintroduced into the taper bore of the disk 9 of the central bearing. Itis obvious that the drive of the spools could be e'ected from eitherside of the spools without any difiiculty from the point of view ofconstruction. ln the same way, the central bering could be adapted to beshifted axia y.

in the upper portion of the'winding frame the thread holders, reels forinstance, are located. The reels could also be replaced by The reels 18and 18 supply material to the 'front ools whereas the reels 18 and 18supp y material to the rear spools. This arrangement of lthe spoolsenables the length of the machine to `be considerably reduced.A In orderto stop the rotation of the spools in the case of an insufficientysupply of material, the following arrangement is provided.

An angle lever 20 is fulcrumed pivotally about its axis 21 in thebearing 19. IThe free end of the lever arm 20 faces the front f surface7 of the spool whereas the freehend of the other lever arm 20 of saidangle I lever bears against the free end of the lever arm 22 of anotherangle lever 22 fulcrumed pivotally about thepivot 24. The lever arm .22of the. angle lever 22 carries on the top a pin 23 extending over thewhole widt of the reel. Should it now happen that the thread is notwound ofi' the reel normally,

but is caught in the material on the vreel and taken along in thedirection of the arrow p Fig-2, the -thread strikes against the l in `23whereby the angle lever 22 and thus t e an-V 'le lever 2O as well isoperated upon.. The ever arm 2Q now presses against the spool and pushes1t away from the driving shaft,

Vthe coupling between said shaft and the spool belng thrown out of gearthereby.

'Instead of a friction coupling, a clutch or claw coupling, forinstance, could also be applied between thedrivingv shaft and the s col.

It a pens that the thread running oli' the thread older towards thespools is caught in the material not wound of, thus causing the threadto be subject to an unequal stress,

that isto say: it is subject 'to an excessive tensile stress inthe caseof such derangements whereby the structure of the thread is ai'ected.The same occurrence takes place when starting the machine, the threadholder being set in motion j erkily.

This drawback is avoided by .supporting i the thread holder in such amanner that it can be shifted in the direction of its height..

The journals l, Figs. 3 and 4, of the thread holders 2 lodge in thebearings 3 of the arms 4 of the pendulum 5, said bearings being openupwards. This pendulumlis pivotally funerumed at 6a. The arm 7L of thependulum carries a counterpoise 8f adapted to be shifted and fixed onarm 7 for the purpose of balancing the pendulum with the thread holder.

The working of this method of lsupporting the thread holder is readilycompre ensible. Should a derangement occur in the supply l of materialwhilst the machine is working,

by preventing the thread from readily detaching itself from the othermaterial, the increased tensile force acting upon the thread sets thependulum in a slight swing- `lng motion downwards until the thread hasloosened again, whereupon the pendulum swings upwards4 again. The 'sameoccurvrence takes place when starting the machine` a greater stress thenacting temporarily upon the thread owing to the state of inertia of thethread holder. Instead of the arrangement described, the journals of thethread holder could, for instance, rest on pili, lows supported bysprings.

. coned ends 'arranged to engage the cones on the driven shaft and .thealined frictionV cones.

2. In awinding machine, a'driving shaft having a spool-engaging end, analined,

spring-urgedvbearing for the opposite end of a spool, an angle leverhaving one en d arrangedto engage the spool endl at the driv-v ingshaft, a second angle lever having one arm arranged' to engaged thesecond arm of the first angle lever and'its other arm arranged adjacentthe path of the thread being Wound, whereby when said thread hangsanddoes not evenlyunwind, the' angle levers are operated to release thedriving connection between the driving shaft and spool.

.3. In a winding machine, a driven shaft having a conical socket at itsend, an alined shaft having a like socket,I a spring to urge the lattersocket toward the former socket and means for engaging a bobbin end torelieve the driving friction of the former driven socket upon unduethread tension.

In testimony that I claim the foregoing as my invention, I have signedmy name.

XAvER BRGGER.

